Here's what rhymes with smelk.
elk lc whelk yarmelke Words that almost rhyme with smelk
neck nec ec ek check deck desk sec wreck cheque tech msec peck shek spec speck beck dec haec heck rec fleck lech trek hatcheck burlesque exec recheck bedeck kopeck grotesque arabesque statuesque spellcheck bottleneck turtleneck discotheque quarterdeck